1-formes ferm6es singuli6res et groupe fondamental by Levitt G.

By Levitt G.

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Levitt Remarque. Certains de nos r6sultats sent probablement des cas particuliers de r6sultats valables pour les formes non singuli6res sur les vari6t6s ouvertes (cf. [ I m 2 ] , [Me]). Via. Formes faiblement compl6tes D a n s la partie III nous avons caract6ris6 alg6briquement les classes de cohomologie dans lesquelles route forme de Morse sans centre est faiblement compl6te. Nous allons maintenant 6tudier les formes plus g6n6rales contenues dans ces classes. 1. Soit co une forme dent le lieu singulier est de codimension au moins 3.

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